胡克定律：只要施与一段金属线的力不超过其比例极限，那么该经书线的伸长量与所施力成正比。
Hook's Law: the extension of a piece of wire is directly proportional to the applied force providing the limit of proportionality is not exceeded.
公司具有年生产能力500吨钴金属量的钴盐生产线。
The company had for years the productivity 500 ton cobalt metal quantity cobalt blue production line.
公司具有年生产能力500吨钴金属量的钴盐生产线。
The company had for years the productivity 500 ton cobalt metal quantity cobalt blue production line.
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